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Every new command is wrapped in a tweet and posted to Twitter. Following the stream is a great way of staying abreast of the latest commands. For the more discerning, there are Twitter accounts for commands that get a minimum of 3 and 10 votes - that way only the great commands get tweeted.
Use your favourite RSS aggregator to stay in touch with the latest commands. There are feeds mirroring the 3 Twitter streams as well as for virtually every other subset (users, tags, functions,…):
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- grep for the word in a files, use recursion (to find files in sub directories), and list only file matches
-| xargs passes the results from the grep command to sed
-sed -i uses a regular expression (regex) to evaluate the change: s (search) / search word / target word / g (global replace)
-sl : show just file names
Videos are found using their MIME type. Thus no need to for an extension for the video file.
This is a efficent version of "jnash" cmd (4086). Thanks for jnash. This cmd will only show video files while his cmd show files having "video" anywhere in path.
Doesn't use shuf, its much faster with "shuf -n4" instead of sort -R
Tells you everything you could ever want to know about all files and subdirectories. Great for package creators. Totally secure too.
On my Slackware box, this gets set upon login:
LS_OPTIONS='-F -b -T 0 --color=auto'
alias ls='/bin/ls $LS_OPTIONS'
which works great.
The original suggestion did not work for me, when operating on folders located on an external mount (ie other than the root device) in Ubuntu. A variation using xargs does the trick.
It can work for message queue, semaphore set or shared memory just changing the parameter.
Escapes spaces in paths.
find . -type f -name '*.wav' -print0 |xargs -0 -P 3 -n 1 flac -V8
will encode all .wav files into FLAC in parallel.
Explanation of xargs flags:
-P [max-procs]: Max number of invocations to run at once. Set to 0 to run all at once [potentially dangerous re: excessive RAM usage].
-n [max-args]: Max number of arguments from the list to send to each invocation.
-0: Stdin is a null-terminated list.
I use xargs to build parallel-processing frameworks into my scripts like the one here: http://pastebin.com/1GvcifYa
If you used to do `vlc /tmp/Flash*`, but no longer can't, this is for you.
For instance, if people have signed your key, this will fetch the signers' keys.
If your version of curl does not support the --compressed option, use
curl -s http://funnyjunk.com | gunzip
curl -s --compressed http://funnyjunk.com
This command can be used to rename all the files with extension .xls( in this case) to .ods files. It can be used for other files with certain extension.
Use case: folder with flac files with tree structure ../artist/album/number-title.flac
1) convert flac->mp3 in the same folder: http://www.commandlinefu.com/commands/view/6341/convert-all-.flac-from-a-folder-subtree-in-192kb-mp3
2) search for mp3 files and recreate tree structure to another path: http://www.commandlinefu.com/commands/view/8853/copy-selected-folder-found-recursively-under-src-retaining-the-structure
3) move all mp3 files to that new folder: this command
This command lists all the directories in SEARCHPATH by size, displaying their size in a human readable format.
There's nothing particularly novel about this combination of find, grep, and wc, I'm just putting it here in case I want it again.
Calc the rough time from Twitter. Now with leading Zeroes.
This combines @zurvollenstunde's hourly tweets and the "n minutes ago" from Twitter search.